Chain earring



FIG. 1 is a top perspective view of a chain earring;

FIG. 2 is an enlarged sectional view of a link of the chain earring shown separately for completeness of illustration;

FIG. 3 is a front elevational view thereof; and,

FIG. 4 is a side elevational view thereof.

The broken lines shown in the drawings illustrate portions of the chain earring that form no part of the claimed design. 

CLAIM The ornamental design for a chain earring, as shown and described. 